Method of protecting shoe lasts



Patented July 4, 1922.

. M ORSE.

ECTING SHOE LASTS.

ILED JULY 9, 1920.

METHOD OF R0 APPLICAT tiara FREDERICK L. MORSE, OF FRAMING-HAM, MASSACHUSETTS.

METHOD OF PROTECTING SHOE LAS'I'S.

inainso.

Specification of Letters Patent.

Patented July 4, 1922.

Application filed July 9, 1920. Serial No. 394,953.

To all whom it may concern:

Be it known that I F REDERIOK L. Monsn, a citizen of the United States of America, and resident of Framingham, Montwait, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Methods of Protecting Shoe Lasts, of which the following is a specification.

This invention relates to shoe making apparatus and particularly to a last used in the manufacturing of boots and shoes, and the said invention has for its object the steps of a method for protecting the edges of last as will presently appear.

An object of this invention is to provide shoe lasts with protecting media at their edges which will cause them to withstand unusual wear and prevent them from being broken or jammed, and it relates particularly to a method applying protectors directly to the edges so as to conform in contour to the edges.

In carrying out the invention, I have found that a number of mechanical contrivances can be successfully employed and the accompanying drawing illustrates several of what at this time I regard as the most satisfactory means of carrying the invention into practice.

In these drawings,

Figure 1 illustrates a perspectlve View of a last having the reinforcements applied thereto;

Figure 2 illustrates a sectional view on the line 2-2 of Figure 1;

Figure 3 illustrates a sectional view on the line 33 of Figure 1.

Figure 4: illustrates a View in elevation of a fragment of a last showing a protecting edge formed of a serrated flexible strip;

Figure 5 illustrates a plan view of a fragment of a strip used as a protecting edge illustrated in Figure 4;

Figures 6, 7 and 8 illustrate plan views of modified. anchoring or imbedding elements associated with protecting strips.

In these drawings 15 denotes a last having protected edges, the protectors of which preferably are formed of relatively soft metal 1n order that they may be finished to the contour of the bottom and sides of the last while at the same time presenting proper surfaces to form the edges of the last. The finishing of the protectors may be accomplished by dressing the metal or buffing it or cutting 1t away in known manner to the contour of the last.

The edges of the last at the cone may have protecting media as shown at 16 whereas the side edges as at 18 and the heel section as at 19 may likewise have protecting media.

In the form of the invention shown in Flgures 4 and 5, a serrated metal body or strip 22 is employed having tangs or points 23 and 24: extending from opposite edges and it is desirable that the tangs 23 be in staggered relation to the tangs 24: in order that the points thereof will not be opposite one another when they are applied to the last, so that the arrangement shown will, in a great measure, guard against weakening the structure of the last due to its being punctured by the tangs.

In Flgure 6 I have illustrated a serrated metallic strip 25 having tangs or anchoring members 26 on one side and tangs 27 on the other side likewise in staggered relation but of less width. By use of this form of the device the material of the last will perhaps be less affected although the anchorage might not be as stable.

In Figures 7 and 8 I have shown a serrated metallic strip 28 and a serrated metallic strip 29 with projecting anchoring elements still further modified, but which might under certain conditions be desirable for the purpose.

So far as I am aware the cost of producing any of the forms shown in Figures 5 to 8 inclusive would be about the same, but I regard the forms in Figures 5 and 6 as more easily attached to a last and as probably possessing more advantages.

It has been found in practice that the protecting strips may be applied mechanically or by hand, but. of course in the interests of large production and cheapness of manufacture, their mechanical application and treatment or finish would be preferable.

I do not, however, wish to be limited with respect to these protecting elements, but I the edges of the last and anchoring the said plates at their edges, and in finishing the said plates on each side ofthe edges of the 10 last to which the plates are applied to the contour of the contiguous surfaces of the last.

FREDERICK L. MORSE. 

